//进行两个数的交换

#include <stdio.h>
int main(){
	int a = 0;
	int b = 0;
	printf("输入两个数：");
	scanf("%d%d",&a,&b);

	a = a + b;
	b = a - b;
	a = a - b;

	printf("输出为：%d %d\n",a,b);

	return 0;
}
